Moving-picture projecting apparatus.



H. L. FRITZ. MOVING PICTURE PROJEGTING APPARATUS.

APPLICATION FILED JUNE 6, 1910.

Patented Dec. 16, 1913.

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66 witnesses.

H. L. FRITZ. MOVING PICTURE PROJEGTING APPARATUS.

, APPLICATION FILED JUNE 6, 1910 1,081,733. Patented Dec. 16,1913.

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To all whom it m concern:

Be it known that *1, HENRY L. Fnrrz, a citizen of the United States, residing at Los Angeles', in the county of Los Angeles and State of California, have invented new and useful Improvements in Moving-Picture Projecting Apparatus, of which the following is a specification.

This invention relates to a projecting apparatus for throwing pictures upon a screen, that is, such a device as is used in theaters in moving picture exhibits.

The object of the invention is to produce an apparatus of this class having improved means for controlling a portion of the film at a point Opposite the lens so to enable the operator toadiust the position of the image which is thrown upon the screen.

In the annexed drawing forming a part of this specification, Figure l'is a side elevation and partial section of the apparatus, away, the case of the device being sown in longitudinal section. Fig. 2 is a side elevation of a part of the mechanism showing the side wall of the device removed, certain par s being broken away. Fig. 3 is a front elevation of the apparatus, certain parts being broken away. Fig. l is 'ahorizontal cross section. taken through the rear end oi": the apparatus opposite the lens and illustrates the means for guiding the film.

Referring more particularly to the parts and especially inFigs. 1 and 3, 8 represents the base of the apparatus upon which is n ounted a bracket 9, the upper portion 02% which is formed into a box or case 10. The forward end of this case 10 is in the form of a bl ock 11, having a horizontal bore 12 therein-,in which the lens 13 is attached, so as to project from the case and toward the screen upon which the pictures are cast.

Within the case 10, I provide an adjusting frame 14, which is formed cit-two curved side arms 15, one or which is'pi'votally attached on a stud 16 at the leit side of the apparatus, while the either is pivotally at a cached to a stud 17 on the opposite side.-

The iorw'ard ends of the arms 15 are received in-poc'kets orie'csses i8 formed in the side edges of the block 11 as indicated. The arms 15 are connected by a cross-bar 19, which is offset above the here 12 so as not to cut oi the light passing through the lens., '.;The lower connected by. a horizontal cross-bar or brace .ends of the arms 15 are.

Specification of Letters Fatent.

. the casein a .formed on the upper PatentedDec. 16, 1913.

Application filed June 6, 1910.. Serial No. 566,281.

19 and at the left side ofithe machine a link 20 is attached to the adjacent arm 15, and this link is attached to a lever 21 having pivot on the clamp bolt 22 onthe bracket or stand 9. From this arrangement it should, be understood that by raising or lowering the lever 21, frame 14 may be raised or lowered.

The film 23- passes down from a supply reel 24, which is mounted on an elevated arm 25, which projects upwardly from a seat 26 oi the case and from the reel 2 it passes between guide rollers2-7 and 28 disposed adjacent to the upper side of the case 10 as indicated. Art this point, the film passes to the rear end of the case where it is guided down through slot 29 in rear wall 30 of the case OBpbOX. As indicated in Fig. 1 at the side edges of this guide slot 29, guide bars 31 are provided which extend downwardly and are formed so that the lower ends form inwardly projecting tongues 32 near the bottorn wall 33 of the case. Adjacent to the tongues 82, similar downwardly projecting duund body 37 and enlarged heads 38, said heads being formed with projectingteeth 39, which are adapted to engage the perforations which are formedin the edges of the film in the usual manner. The roller 36. co operates with the heads 38 so as to keep the film in engagement with the teeth 39 as will be readily understood.

Asindicated in Fig. i, the stud 45 forms a stub shaft passing out through the side wall of the case through a suitable curved slot 76. Onthe outer part of this shaft, a fly-wheel or balance wheel 77 is attached, which tends to cause the Wheel 4% to rotate at a' uniform velocity. Beyond the wheel 77, a shaft 4:5 is provided ith a pinion 78 and this pinion is driven by a master genr 79, which is rotata by mounted on the side of the case on the stud 16. In order to'drivetheJria ster-gear, it is provided with a rigid pinion 80 and this pinion driven byasimilar pinion 81 carried upon a cross shaft 82, which extends through the upper part of the block 11 and projects at the right side of the case whereit is provided with crank 88 for rotating it.

The mode of operation of the mechanism will nowbedescribed: When the crank 83 is rotated the shaft 82 imparts rotation to the pinion 80 on the hub of the master gear 79 and this master gear rotates both guide rollers 27 and 86 through the case and across the light opening 52. Theunaster gear also rotates the pinion 78 on the shaft 45 which drives the Wheel 44, and the guide roller 37 which is so as to advance the film What I claim is z- An apparatus of the class described for projecting pictures, a casing having a light opening therethrough, means for guiding the film through the casing, a continuous feed roller mounted on said casing, a yoke frame pivotally mounted in the axial line of said casing, an interrupted feed roller mounted in said yoke frame, a pair of feed rollers mounted on said casing, gears on each of said rollers, an intermediate gear on the pivot of the yoke imparting motion to each of said rollers cooperatively, a link hinged to the free end of the yoke, an adjustable operating lever connected to said link and means to clamp said lever when the picture projected is framed.

In Witness that I claim the foregoing I have hereunto subscribed my name this 21st day of hiay, 1910.

HENRY L. FRITZ. Witnesses:

F. D. AMMEN, EDMUND A. STRAUSE.

mounted on the adjusting frame it. By reason of the slot 76 the shaft 4.5 passing through the Wall of the case does not prevent the adjusting frame from being elevated or 20 lowered by means of lever 21 so as to adjust the position of the film as it passes the light opening. In this Way the operator controls the position of the picture which is projected upon, the screen. I

{topics of this patent may be obtained for five cents each, by addressing the Commissioner of Patentsv Washington, D. C. M 

